Problem A
Self-Similar Strings — Problem Statistics

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Submissions	2465
Accepted submissions	1334
Submission ratio	54.12%
Authors	398
Full solves [?]	352
Full solve Ratio	88.44%

#	User	Runtime	Language	Date
1	Hidden user	0.03 s	C	2017-12-11 06:07:24
2	Jack Gurdin	0.03 s	C	2022-09-29 20:12:55
3	Hidden user	0.03 s	C	2025-04-23 09:13:40
4	Zachariah Goldthorpe	0.04 s	C	2017-08-12 22:47:16

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.13 s	C#	2015-10-22 15:08:51
2	Aurimas Neverauskas	0.21 s	C#	2017-04-27 19:05:09
3	Apurv Parekh	0.21 s	C#	2019-03-26 19:29:30
4	Hidden user	0.38 s	C#	2022-09-13 06:52:50
5	Emil Clemedson	1.26 s	C#	2021-10-01 10:07:01

#	User	Runtime	Language	Date
1	YanHao Ling	0.02 s	C++	2018-03-28 17:33:37
2	Daniel Schemmel	0.03 s	C++	2016-10-03 02:14:00
3	Hidden user	0.03 s	C++	2017-08-14 10:10:31
4	Tyler Hartwig	0.04 s	C++	2015-05-02 00:18:48
5	Greg Walkup	0.04 s	C++	2015-05-02 00:54:34
6	Hua Fan Cai	0.04 s	C++	2016-02-26 02:15:46
7	Domantas Jadenkus	0.04 s	C++	2016-04-21 17:34:58
8	Evaldas Čiakas	0.04 s	C++	2016-04-21 18:43:50
9	Dominykas Ruibys	0.04 s	C++	2016-04-21 20:54:57
10	Adomas Paulauskas	0.04 s	C++	2016-12-17 11:32:07

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	1.24 s	F#	2023-05-22 19:44:39

#	User	Runtime	Language	Date
1	Arne Philipeit	0.21 s	Go	2019-10-01 21:02:41
2	Norbert Voelker	0.21 s	Go	2021-11-23 17:18:47

#	User	Runtime	Language	Date
1	Mason Barnhill	0.13 s	Haskell	2023-06-09 21:43:30
2	Brent Yorgey	0.14 s	Haskell	2019-04-28 20:36:20
3	Steinar Simonnes	0.14 s	Haskell	2025-06-06 15:11:54

#	User	Runtime	Language	Date
1	Liam Keliher	0.18 s	Java	2021-08-05 00:56:41
2	Bjørn Dons	0.25 s	Java	2020-06-04 21:32:13
3	Shakeel Samsudeen	0.28 s	Java	2018-11-18 02:18:19
4	Simon Xue	0.31 s	Java	2016-05-30 04:44:12
5	Theodoric Keith Lim	0.31 s	Java	2020-07-25 08:38:23
6	Logan Pipes	0.32 s	Java	2021-08-05 02:23:45
7	Martijn Muijsers	0.35 s	Java	2017-03-04 17:32:44
8	Maxim Stepanenko	0.36 s	Java	2025-09-25 12:52:37
9	Shan Flor	0.37 s	Java	2023-05-15 17:06:00
10	Shan Flor	0.38 s	Java	2023-05-16 14:59:06

#	User	Runtime	Language	Date
1	Ankit Agrawal	0.83 s	JavaScript (Node.js)	2022-09-29 23:22:01

#	User	Runtime	Language	Date
1	Zach Tschetter	0.16 s	JavaScript (SpiderMonkey)	2023-06-27 02:34:06
2	Peter Kedemo	0.34 s	JavaScript (SpiderMonkey)	2016-05-28 20:29:26
3	Christian Pilegaard Cederquist	0.81 s	JavaScript (SpiderMonkey)	2023-06-12 00:50:23

#	User	Runtime	Language	Date
1	Timothy Gaede	1.65 s	Julia	2025-10-07 10:39:57

#	User	Runtime	Language	Date
1	Dayan Ruben Gonzalez	0.83 s	Kotlin	2020-09-29 03:51:17
2	Phường Lên	1.94 s	Kotlin	2020-03-28 03:27:24

#	User	Runtime	Language	Date
1	Cian Ruane	0.09 s	Python 2	2017-11-28 16:45:32
2	Sergio Vieri	0.09 s	Python 2	2018-03-26 16:11:19
3	Tomaz Kristan	0.09 s	Python 2	2020-02-14 17:56:33
4	Johan Lyts	0.11 s	Python 2	2019-04-06 10:40:52
5	Agis Daniels	0.12 s	Python 2	2020-03-31 15:31:24
6	Andreas Björklund	0.14 s	Python 2	2020-10-25 17:11:30
7	Haggai Liu	0.15 s	Python 2	2017-06-21 08:37:40
8	Ciara Godwin	0.17 s	Python 2	2017-08-30 01:01:27
9	Lars Åström	0.17 s	Python 2	2019-10-02 14:33:12
10	Hidden user	0.19 s	Python 2	2016-07-08 16:12:33

#	User	Runtime	Language	Date
1	Wouter Dijkstra	0.11 s	Python 3	2022-06-28 19:45:24
2	Tomaz Kristan	0.13 s	Python 3	2022-03-09 14:30:49
3	James Feng	0.13 s	Python 3	2023-12-08 22:11:57
4	Josh Taylor	0.14 s	Python 3	2022-07-21 17:03:11
5	Peter Stauder	0.14 s	Python 3	2023-01-16 20:53:32
6	Lư Anh Khoa	0.14 s	Python 3	2025-09-07 10:37:07
7	Jesse B-K	0.15 s	Python 3	2020-10-06 21:08:29
8	Ahmed Chamseddine	0.15 s	Python 3	2025-05-16 00:25:33
9	Ivo Peterka	0.16 s	Python 3	2021-08-30 12:11:20
10	Matthew McCaskill	0.16 s	Python 3	2022-02-23 21:49:42

#	User	Runtime	Language	Date
1	Clement Oh	0.32 s	Ruby	2024-03-20 07:55:28
2	Hidden user	0.50 s	Ruby	2019-10-01 21:20:16
3	Macdara mac an tSionnaigh	1.75 s	Ruby	2019-10-01 23:58:10

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.02 s	Rust	2025-07-12 15:11:15
2	Alice Ryhl	0.05 s	Rust	2022-06-17 18:02:19
3	Eric Pinter	0.06 s	Rust	2020-11-13 22:48:31
4	Lily Gloudemans	0.09 s	Rust	2024-10-08 23:36:43
5	Bas Dirks	1.38 s	Rust	2024-01-31 08:48:16

#	User	Length	Language	Date
1	Hidden user	647	C	2017-12-11 06:07:24
2	Hidden user	685	C	2025-04-23 09:13:40
3	Jack Gurdin	1087	C	2022-09-29 20:12:55
4	Zachariah Goldthorpe	1108	C	2017-08-12 22:47:16

#	User	Length	Language	Date
1	Emil Clemedson	1532	C#	2021-10-01 10:07:01
2	Apurv Parekh	1548	C#	2019-03-26 19:29:30
3	Andriy Zyevakov	2242	C#	2015-10-22 15:08:51
4	Aurimas Neverauskas	2602	C#	2017-04-27 19:05:09
5	Hidden user	2640	C#	2022-09-13 06:19:03

#	User	Length	Language	Date
1	Evan Michael Bailey	406	C++	2023-07-15 19:07:16
2	Hua Fan Cai	438	C++	2016-02-26 02:15:46
3	Leonardo Blanger	438	C++	2021-04-06 22:39:28
4	Mindaugas Kazlauskas	448	C++	2016-04-16 00:11:18
5	Johan Wind	458	C++	2018-11-01 02:38:44
6	Zane Yu	462	C++	2019-02-05 07:47:15
7	Josenildo Silva	469	C++	2016-12-24 16:17:59
8	Raynold Ng	491	C++	2018-03-31 19:00:43
9	David Venhoek	503	C++	2016-04-22 14:22:25
10	Pijus Bradulskis	509	C++	2016-04-21 21:07:57

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	884	F#	2023-05-22 19:44:39

#	User	Length	Language	Date
1	Arne Philipeit	482	Go	2019-10-01 21:02:41
2	Norbert Voelker	763	Go	2021-11-23 17:18:47

#	User	Length	Language	Date
1	Brent Yorgey	435	Haskell	2019-10-11 23:38:53
2	Mason Barnhill	521	Haskell	2023-06-09 21:43:30
3	Steinar Simonnes	887	Haskell	2025-06-06 15:12:59

#	User	Length	Language	Date
1	Pedro Contipelli	572	Java	2016-12-21 17:28:25
2	Hidden user	595	Java	2021-02-07 06:13:34
3	Kyar Nyo Aye	636	Java	2018-03-23 07:24:07
4	Hidden user	655	Java	2022-03-21 03:17:00
5	Aliza Mae Maquinana	655	Java	2023-05-06 14:30:22
6	Janice Sabaybay	655	Java	2023-05-18 15:43:11
7	Janice Sabaybay	655	Java	2023-05-18 16:26:22
8	Hidden user	697	Java	2018-12-07 05:58:33
9	Soufiane Oualil	697	Java	2018-12-07 05:59:03
10	Anthony Blazer	702	Java	2024-04-19 01:08:20

#	User	Length	Language	Date
1	Ankit Agrawal	640	JavaScript (Node.js)	2022-09-29 23:22:01

#	User	Length	Language	Date
1	Zach Tschetter	370	JavaScript (SpiderMonkey)	2023-06-27 02:34:06
2	Peter Kedemo	552	JavaScript (SpiderMonkey)	2016-05-28 20:29:26
3	Christian Pilegaard Cederquist	682	JavaScript (SpiderMonkey)	2023-06-12 00:50:23

#	User	Length	Language	Date
1	Timothy Gaede	910	Julia	2025-10-07 10:39:57

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	619	Kotlin	2020-09-29 03:51:17
2	Phường Lên	781	Kotlin	2020-03-28 03:27:24

#	User	Length	Language	Date
1	Andreas Björklund	356	Python 2	2020-10-25 17:11:30
2	Ciara Godwin	374	Python 2	2017-08-30 01:01:27
3	Hermon Mulat	375	Python 2	2018-12-31 21:19:57
4	Lars Åström	391	Python 2	2019-10-02 14:33:12
5	Sergio Vieri	402	Python 2	2018-03-26 16:11:19
6	Cian Ruane	481	Python 2	2017-11-28 16:45:32
7	Team Baud	534	Python 2	2015-07-07 20:10:16
8	Michael Huang	539	Python 2	2018-03-22 16:17:42
9	Agis Daniels	551	Python 2	2020-03-31 15:31:24
10	Michael Laszlo	581	Python 2	2016-10-26 22:25:19

#	User	Length	Language	Date
1	Thomas Feld	147	Python 3	2023-08-08 13:42:50
2	Benjamin Z White	174	Python 3	2023-05-15 19:15:20
3	Peter Stauder	185	Python 3	2023-01-16 20:55:01
4	Nicholas Russell Saerang	214	Python 3	2023-09-28 16:37:04
5	Ahmed Chamseddine	239	Python 3	2025-05-16 00:25:33
6	Clement Oh	273	Python 3	2024-03-19 18:13:07
7	Evan Magill	283	Python 3	2025-09-11 21:13:52
8	Wouter Dijkstra	295	Python 3	2022-06-28 15:47:05
9	a_b__c	329	Python 3	2021-01-12 17:15:13
10	Oskar Haarklou Veileborg	331	Python 3	2020-02-11 16:44:23

#	User	Length	Language	Date
1	Clement Oh	221	Ruby	2024-03-19 18:17:19
2	Hidden user	416	Ruby	2019-10-01 21:20:16
3	Macdara mac an tSionnaigh	598	Ruby	2019-10-01 23:58:10

#	User	Length	Language	Date
1	Lily Gloudemans	888	Rust	2024-10-08 23:36:43
2	Bas Dirks	1035	Rust	2024-01-31 08:46:57
3	Eric Pinter	1099	Rust	2020-11-13 22:48:31
4	Alice Ryhl	1252	Rust	2022-06-17 18:02:19
5	Vincent Lagerros	10892	Rust	2024-05-30 19:34:19

Solution running time distribution